h264 recording

[Sérgio Agostinho]

See if passing the -e switch in your  mp4mux + filesink pipeline actually
produces a proper file. mp4mux really needs to receive the EOS.

Cheers

2016-01-13 2:44 GMT+01:00 Robert Armstrong <orangerobot at gmail.com>:

> I'm continuing to debug an issue w/ recording/streaming H.264 from a
> proprietary UVC USB camera.
>
> This works fine:
>
> gst-launch-1.0 v4l2src device=/dev/video1 num-buffers=150 ! queue !
>  h264parse ! avimux ! filesink location=foo.avi
>
> But this produces a file with only few frames:
>
> gst-launch-1.0 v4l2src device=/dev/video1 num-buffers=150 ! queue !
>  h264parse ! mp4mux faststart=true ! filesink location=foo.mp4
>
> This has the same issues as the mp4mux:
>
> gst-launch-1.0 -e v4l2src device=/dev/video1 !
> video/x-h264,width=1280,height=720,framerate=30/1 ! h264parse ! queue !
> rtph264pay ! udpsink host=192.168.168.121 port=5000
>
> If I crank up the debug level on the mp4mux example, the main difference
> seems to be this:
>
> 0:00:01.864250954   847  0x9ae0db0 WARN               h264parse
> gsth264parse.c:1205:gst_h264_parse_handle_frame:<h264parse0> broken/invalid
> nal Type: 1 Slice, Size: 20747 will be dropped
> 0:00:01.896477567   847  0x9ae0db0 WARN               h264parse
> gsth264parse.c:1205:gst_h264_parse_handle_frame:<h264parse0> broken/invalid
> nal Type: 1 Slice, Size: 21045 will be dropped
> 0:00:01.932409929   847  0x9ae0db0 WARN               h264parse
> gsth264parse.c:1205:gst_h264_parse_handle_frame:<h264parse0> broken/invalid
> nal Type: 1 Slice, Size: 19627 will be dropped
> 0:00:01.964358670   847  0x9ae0db0 WARN               h264parse
> gsth264parse.c:1205:gst_h264_parse_handle_frame:<h264parse0> broken/invalid
> nal Type: 1 Slice, Size: 19898 will be dropped
> 0:00:01.996332701   847  0x9ae0db0 WARN               h264parse
> gsth264parse.c:1205:gst_h264_parse_handle_frame:<h264parse0> broken/invalid
> nal Type: 1 Slice, Size: 19490 will be dropped
>
> The avimux pipeline will only drop one frame over 5 seconds.
>
> The same frame dropping happens if I try to stream by connecting h264parse
> to rtph264pay.
>
> Any suggestions on how to address? Are there parameters I can use to tune
> mp4mux? Is it possible that avimux is more tolerant of the data it's
> receiving than mp4mux?
>
> Thanks in advance!
>
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>
>
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